Stainless Steel Centre Ltd are stockists and suppliers of Fasteners with extensive stocks in ( A2 304 st/stl) ( A4 316 st/stl). Stainless Steel Centre Ltd is a BS EN ISO 9001 : 2008 approved stockist of fixings fastenings, nuts bolts, (Certificate No GB 7077) situated on the outskirts of Southampton within the County of Hampshire. Stainless Steel Centre Ltd are the largest stockist of Stainless Steel Nuts Bolts, Screws Washers (Fixings Fastenings) both in A2 - A4 situated in the Southampton - Eastleigh area of Hampshire. Likewise A4 grade can be called type 316 – but more: A2 Type 304 can also be called 18/8 because it ‘approximately’ contains 18% Chromium and 8 % nickel. So, A2 (304, 18/8) is an austenitic steel and is hereic. The chromium provides a corrosion and oxidation resistance, however it can tarnish.
304 stainless steel also known as A2 stainless steel is resistant to corrosion however 316 stainless steel also known as A4 stainless steel provides a higher degree of corrosion resistance because it contains molybdenum hereposition. A4 stainless steel is made of 16% chromium, 10% nickel and 2% molybdenum. These screws and fixings are often used outdoors, due to the superior corrosion resistance herepared to A2, as well as being far more durable. A4 Stainless Steel Washers. About these products Close. 22 products found. Washers are multipurpose fasteners that are vital in a variety of applications. In general, washers have two main functions:
12.9 Grade Bare Steel ; A2/ A4 Stainless Steel ; DIN 933 / ISO 4017 Fully Threaded Hex Cap Screw. 8.8 Grade Bare Steel / Zinc Plated; 8.8 Grade Hot Dip Galvanized (ISO FIT) 10.9 Grade Bare Steel ; 12.9 Grade Bare Steel ; A2/ A4 Stainless Steel ; Brass; DIN 960 / ISO 8765 Partially Threaded Hex Cap Screw (Fine Thread) 8.8 Grade Bare/Zinc (1st Fine) Stainless Steel Properties. Types A2 and A4 may contain up to a maximum of 4 % copper. The selection of steel grades within a group is the prerogative of the manufacturer, unless the purchaser has specified particular steels to ISO or national standards. The characteristics of austenitic stainless steel. ••• Galvanized steel in a parking garage. Austenitic steels are hereic stainless steels that contain high levels of chromium and nickel and low levels of carbon. Known for their formability and resistance to corrosion, austenitic steels are the most widely used grade of stainless steel.